Studying of charge-transfer (CT) and proton transfer interactions is essential due to their important role in many biological field and industrial applications. The current work will add more information’s about the ...Studying of charge-transfer (CT) and proton transfer interactions is essential due to their important role in many biological field and industrial applications. The current work will add more information’s about the nature of interaction between 3,5-diamino-1,2,4-triazole (DAT) and 6-methyl-1,3,5-triazine-2,4-diamine (MTDA) with 3,6-dichloro-2,5-dihydroxy-p-benzoquinone (chloranilic acid CLA) which was studied spectrophotometrically in Ethanol (EtOH) and Methanol (MeOH) solvents at different temperatures. The molecular composition of the formed complexes was studied by applying continuous variation and spectrophotometric titration methods and found to be 1:1 charge transfer complex for both Complex (DAT:CLA) and (MTDA:CLA) which are produced. Minimum-Maximum absorbance’s method has been applied to calculate the formation constant KCT and molecular extinction coefficient (ε);they recorded high values confirming high stability of the produced complexes. Oscillator strength (f), transition dipole moment (μ), ionization potential (IP) and dissociation energy (W) of the formed CT-complexes were also determined and evaluated;they showed solvent dependency. It is concluded that the formation constant (KCT) of the complexes is found to depend on the nature of both electron acceptor and donors and on the polarity of solvents.展开更多
One two-dimensional compound(PyH)[Cu(ttc)](PyH = protonated pyridine) was solvothermally synthesized in the presence of thiophenol mineralizer using ttcH3(1,3,5-triazine-2,4,6-trithione, trithiocyanuric acid) ligand. ...One two-dimensional compound(PyH)[Cu(ttc)](PyH = protonated pyridine) was solvothermally synthesized in the presence of thiophenol mineralizer using ttcH3(1,3,5-triazine-2,4,6-trithione, trithiocyanuric acid) ligand. It crystallizes in the triclinic system, space group P1 with a = 7.6824(12), b = 7.8094(13), c = 9.9541(18) ?, V = 555.95(16) ?~3, Z = 2, T = 296(2) K, GOOF = 1.136, λ(Mo Kα) = 0.71073 ?, D3c = 4.555 g/cm, CuSNCH, Mr = 382, F(000) = 737, the final R = 0.0654, wR = 0.1936 for 1558 observed reflections with I > 2s(I). Structure analyses indicate that the whole Cu(I) atoms have planar triangular coordination. The compound shows intense fluorescent emission and high thermal stability.展开更多
文摘Studying of charge-transfer (CT) and proton transfer interactions is essential due to their important role in many biological field and industrial applications. The current work will add more information’s about the nature of interaction between 3,5-diamino-1,2,4-triazole (DAT) and 6-methyl-1,3,5-triazine-2,4-diamine (MTDA) with 3,6-dichloro-2,5-dihydroxy-p-benzoquinone (chloranilic acid CLA) which was studied spectrophotometrically in Ethanol (EtOH) and Methanol (MeOH) solvents at different temperatures. The molecular composition of the formed complexes was studied by applying continuous variation and spectrophotometric titration methods and found to be 1:1 charge transfer complex for both Complex (DAT:CLA) and (MTDA:CLA) which are produced. Minimum-Maximum absorbance’s method has been applied to calculate the formation constant KCT and molecular extinction coefficient (ε);they recorded high values confirming high stability of the produced complexes. Oscillator strength (f), transition dipole moment (μ), ionization potential (IP) and dissociation energy (W) of the formed CT-complexes were also determined and evaluated;they showed solvent dependency. It is concluded that the formation constant (KCT) of the complexes is found to depend on the nature of both electron acceptor and donors and on the polarity of solvents.
基金supported by National Natural Science Foundation of China(21770643)
文摘One two-dimensional compound(PyH)[Cu(ttc)](PyH = protonated pyridine) was solvothermally synthesized in the presence of thiophenol mineralizer using ttcH3(1,3,5-triazine-2,4,6-trithione, trithiocyanuric acid) ligand. It crystallizes in the triclinic system, space group P1 with a = 7.6824(12), b = 7.8094(13), c = 9.9541(18) ?, V = 555.95(16) ?~3, Z = 2, T = 296(2) K, GOOF = 1.136, λ(Mo Kα) = 0.71073 ?, D3c = 4.555 g/cm, CuSNCH, Mr = 382, F(000) = 737, the final R = 0.0654, wR = 0.1936 for 1558 observed reflections with I > 2s(I). Structure analyses indicate that the whole Cu(I) atoms have planar triangular coordination. The compound shows intense fluorescent emission and high thermal stability.
